Implement hit tests/client area.

ui/aura/mus/window_tree_client.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_AURA_MUS_WINDOW_TREE_CLIENT_H_
 #define UI_AURA_MUS_WINDOW_TREE_CLIENT_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 83 matching lines @@
   void ConnectViaWindowTreeFactory(service_manager::Connector* connector);
 
   // Establishes the connection by way of WindowManagerWindowTreeFactory.
   void ConnectAsWindowManager(service_manager::Connector* connector);
 
   bool connected() const { return tree_ != nullptr; }
   ClientSpecificId client_id() const { return client_id_; }
 
   client::CaptureClient* GetCaptureClient();
 
-  void SetClientArea(Window* window,
-                     const gfx::Insets& client_area,
-                     const std::vector<gfx::Rect>& additional_client_areas);
-  void SetHitTestMask(Window* window, const gfx::Rect& mask);
-  void ClearHitTestMask(Window* window);
   void SetCanFocus(Window* window, bool can_focus);
   void SetCanAcceptDrops(Id window_id, bool can_accept_drops);
   void SetCanAcceptEvents(Id window_id, bool can_accept_events);
   void SetPredefinedCursor(WindowMus* window,
                            ui::mojom::Cursor old_cursor,
                            ui::mojom::Cursor new_cursor);
   void SetWindowTextInputState(WindowMus* window,
                                mojo::TextInputStatePtr state);
   void SetImeVisibility(WindowMus* window,
                         bool visible,
@@ skipping 294 matching lines @@
   void RemoveActivationParent(Window* window) override;
   void ActivateNextWindow() override;
   void SetUnderlaySurfaceOffsetAndExtendedHitArea(
       Window* window,
       const gfx::Vector2d& offset,
       const gfx::Insets& hit_area) override;
 
   // Overriden from WindowTreeHostMusDelegate:
   void OnWindowTreeHostBoundsWillChange(WindowTreeHostMus* window_tree_host,
                                         const gfx::Rect& bounds) override;
+  void OnWindowTreeHostClientAreaWillChange(
+      WindowTreeHostMus* window_tree_host,
+      const gfx::Insets& client_area,
+      const std::vector<gfx::Rect>& additional_client_areas) override;
+  void OnWindowTreeHostHitTestMaskWillChange(
+      WindowTreeHostMus* window_tree_host,
+      const base::Optional<gfx::Rect>& mask_rect) override;
   std::unique_ptr<WindowPortMus> CreateWindowPortForTopLevel() override;
   void OnWindowTreeHostCreated(WindowTreeHostMus* window_tree_host) override;
 
   // Override from client::TransientWindowClientObserver:
   void OnTransientChildWindowAdded(Window* parent,
                                    Window* transient_child) override;
   void OnTransientChildWindowRemoved(Window* parent,
                                      Window* transient_child) override;
   void OnWillRestackTransientChildAbove(Window* parent,
                                         Window* transient_child) override;
@@ skipping 77 matching lines @@
   std::unique_ptr<DragDropControllerMus> drag_drop_controller_;
 
   base::WeakPtrFactory<WindowTreeClient> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowTreeClient);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_MUS_WINDOW_TREE_CLIENT_H_